Session 5-Amino Acids Flashcards Preview

Semester 1-MCBG > Session 5-Amino Acids > Flashcards

Flashcards in Session 5-Amino Acids Deck (10):
1

How many different AA are there?

20

2

What are the two main groups of AAs?

Non-polar and hydrophobic vs polar and hydrophilic

3

Which two groups are non-polar and hydrophobic?

Alkyl and aromatic AAs

4

Which three groups are polar and hydrophilic?

Neutral
Acidic
Basic

5

Which elements are AAs made of? (5)

Carbon
Oxygen
Nitrogen
Hydrogen
Sulphur

6

What is an AA residue?

What remains of an AA after it is joined by a peptide bond to form a protein

7

What happens when pH < pK?

Group will be protonated (H+ added)

8

What happens when pH > pK?

The group will be deprotonated (H+ removed)

9

What is physiological pH?

7.4

10

What four things is the central carbon atom of an AA covalently bonded to?

Amino group (-NH2)
Carboxyl group (-COOH)
Hydrogen atom (-H)
Distinctive R group (side chain)